Results 11 to 20 of about 60,054 (191)
Analytical Model for Predesigning Probe-Fed Hybrid Microstrip Antennas
International Journal of Antennas and Propagation, 2018 Based on the equivalent resonant cavity model, an effective analysis methodology of probe-fed hybrid microstrip antennas is carried out in this paper, resulting in a better understanding of the parameter interrelations affecting their behavior. With that,
Nilson R. Rabelo +6 more
doaj +2 more sources
International Journal of Climatology, Volume 43, Issue 4, Page 1935-1954, 30 March 2023., 2023 This study on fog at the Mediterranean coast of the Iberian Peninsula with data from 2003 to 2012 has obtained the following findings on its collection potential: marked annual and seasonal variability, great capacity on days with no rain, and the important role of altitude.
David Corell +2 more
wiley +1 more source
Managerial and Decision Economics, Volume 43, Issue 8, Page 3568-3575, December 2022., 2022 The autonomous public mass media must strengthen the linguistic and cultural diversity of a region. It is questioned whether its financing and management model is appropriate in view of the economic problems it often faces. It has been studied the efficiency of 11 Spanish public broadcasting channels using data envelopment analysis to know which ones ...
Javier Cifuentes‐Faura
wiley +1 more source
Victims crossing overflowing watercourses with vehicles in Spain
Journal of Flood Risk Management, Volume 13, Issue 4, December 2020., 2020 Abstract Heavy rainfall causes many watercourses to overflow. In these circumstances, crossing by car even on a road, can be extremely dangerous; however, dozens of drivers are swept away every year in their vehicles. This paper analyses this type of accident in Spain between 2008 and 2018, recording the date, location, number of victims, age and ...
Álvaro Enríquez‐de‐Salamanca
wiley +1 more source
Constricted spatiotemporal foraging of the regenerating salamander, Bolitoglossa mombachoensis
Ecosphere, Volume 10, Issue 10, October 2019., 2019 Abstract Bolitoglossa mombachoensis is an endemic neotropical salamander of the Mombacho Volcano, Nicaragua. Canopy communities within the tropics are hubs for biodiversity, and many tropical plethodontids have a foraging preference for epiphytic plants, such as bromeliads, which provide moist microclimates for shelter, foraging, and nesting.
Roger A. Mendieta Donaire +8 more
wiley +1 more source
Revista de Salud Ambiental, 2004 En esta revisión se presentan y comentan los estudios existentes sobre la exposición residencial a campos de radiofrecuencia con relación a un posible aumento de incidencia o de mortalidad por cáncer.
Marina Pollán Santamaría
doaj +2 more sources
Algoritmos adaptativos de núcleos de Mercer [PDF]
, 2014 El objetivo de este Proyecto Fin de Carrera es la introducción del kernel recursivo en los algoritmos lineales de kernel, en nuestro caso utilizaremos los algoritmos KLMS y KRLS, para su aplicación a los sistemas de comunicación como es en nuestro caso.
Sanz Muñoz, Miguel Ángel
core +9 more sources
Metamateriales en microondas y antenas [PDF]
, 2003 Desde la década de los '80 una gran variedad de materiales artificiales (no existentes en la naturaleza) son intensivamente estudiados por sus inusitadas y sorprendentes propiedades electromagnéticas (como partes reales de permitividad eléctrica y ...
González Arbesú, José María +2 more
core +3 more sources
Medidas morfométricas de fêmeas e machos de Oncideres dejeani Thompson, 1868 (Coleoptera: Cerambycidae) [PDF]
Ciência Rural, 2006 O objetivo deste trabalho foi identificar aspectos morfológicos de Oncideres dejeani que possibilitem a diferenciação sexual destes insetos. Dados da morfometria de 25 casais de insetos obtidos com auxílio de um microscópio estereoscópico e de um ...
Rita de Cássia Andrade dos Santos Seffrin +3 more
doaj +1 more source
Monitoring Accessibility Services in Digital Television
International Journal of Digital Multimedia Broadcasting, Volume 2012, Issue 1, 2012., 2012 This paper addresses methodology and tools applied to the monitoring of accessibility services in digital television at a time when the principles of accessibility and design are being considered in all new audiovisual media communication services. The main objective of this research is to measure the quality and quantity of existing accessibility ...
Francisco Utray +4 more
wiley +1 more source